From: Hans de Goede Date: Thu, 22 Apr 2010 17:52:16 +0000 (+0200) Subject: p54pci: fix bugs in p54p_check_tx_ring X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0250ececdf6813457c98719e2d33b3684881fde0;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git p54pci: fix bugs in p54p_check_tx_ring Hans de Goede identified a bug in p54p_check_tx_ring: there are two ring indices. 1 => tx data and 3 => tx management. But the old code had a constant "1" and this resulted in spurious dma unmapping failures. Cc: stable@kernel.org Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=583623 Bug-Identified-by: Hans de Goede Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c index ed4bdffdd63e..21f673d8565f 100644 --- a/drivers/net/wireless/p54/p54pci.c +++ b/drivers/net/wireless/p54/p54pci.c @@ -245,7 +245,7 @@ static void p54p_check_tx_ring(struct ieee80211_hw *dev, u32 *index, u32 idx, i; i = (*index) % ring_limit; - (*index) = idx = le32_to_cpu(ring_control->device_idx[1]); + (*index) = idx = le32_to_cpu(ring_control->device_idx[ring_index]); idx %= ring_limit; while (i != idx) {